Prediction of Battery Behavior Subject to High-Rate Partial State of Charge

An online optimization procedure provides the parameters of a nonlinear battery model by taking into account a few minutes of measured current-voltage data. Within a defined range in terms of charge current, state of charge (SOC), and duration of charge and discharge events, the model is able to cap...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2009-02, Vol.58 (2), p.588-595
Main Authors: van Bree, P.J., Veltman, A., Hendrix, W.H.A., van den Bosch, P.P.J.
Format: Article
Language:English
Subjects:
Accuracy
Applied sciences
Battery
Battery charge measurement
Battery model
Charge
charge acceptance
Cities and towns
Current measurement
Design. Technologies. Operation analysis. Testing
Direct energy conversion and energy accumulation
Drives
Electric batteries
Electric potential
Electric variables measurement
Electric vehicles
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electronics
Exact sciences and technology
Ground, air and sea transportation, marine construction
high-rate partial state-of-charge (HRPSOC)
hybrid electric vehicles (HEVs)
Integrated circuits
lead-acid battery
Mathematical models
On-line systems
Optimization
Predictive models
Pulse measurements
Road transportation and traffic
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
state of function (SOF)
Vehicle dynamics
Voltage
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Description
Summary:An online optimization procedure provides the parameters of a nonlinear battery model by taking into account a few minutes of measured current-voltage data. Within a defined range in terms of charge current, state of charge (SOC), and duration of charge and discharge events, the model is able to capture the relevant battery dynamics and predict the behavior for the next few minutes. From the battery behavior during specific events, the state of the battery can be revealed, which is defined as the state of function. Validation, which is carried out on measured current-voltage profiles, shows the accuracy of prediction during the high-rate partial SOC operation. Even with the data measured during a city drive within a microhybrid electrical vehicle, the method is able to predict the voltage level during high-rate discharge pulses (cranking).cranking
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2008.928005